Shown with a cast-on count of 75 stitches.  

• Round 1: Ssk, k9, k2tog, p2, ssk, k9, k2tog, p2, ssk, k9, k2tog, p2, ssk, k9, k2tog, p2, ssk, k9, k2tog, p2 (65 sts).
• Round 2: Ssk, k7, k2tog, p2, ssk, k7, k2tog, p2, ssk, k7, k2tog, p2, ssk, k7, k2tog, p2, ssk, k7, k2tog, p2 (55 sts).
• Round 3: Ssk, k5, k2tog, p2, ssk, k5, k2tog, p2, ssk, k5, k2tog, p2, ssk, k5, k2tog, p2, ssk, k5, k2tog, p2 (45 sts).
• Round 4: K1, yo, k1, yo, k1, yo, k1, yo, k1, yo, k1, yo, k1, p2, k1, [yo, k1] 6 times, p2, k1, [yo, k1] 6 times, p2, k1, [yo, k1] 6 times, p2, k1, [yo, k1] 6 times, p2 (75 sts).
• Round 5: K13, p2, k13, p2, k13, p2, k13, p2, k13, p2.